C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D
68
Rev. 1.3
Table 7.1. Comparator Electrical Characteristics
V
DD
= 3.0 V, –40 to +85 °C unless otherwise noted.
All specifications apply to both Comparator0 and Comparator1 unless otherwise noted.
Parameter
Conditions
Min
Typ
Max
Units
Response Time:
Mode 0, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV
100
ns
CP0+ – CP0– = –100 mV
250
ns
Response Time:
Mode 1, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV
175
ns
CP0+ – CP0– = –100 mV
500
ns
Response Time:
Mode 2, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV
320
ns
CP0+ – CP0– = –100 mV
1100
ns
Response Time:
Mode 3, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV
1050
ns
CP0+ – CP0– = –100 mV
5200
ns
Common-Mode Rejection
Ratio
1.5
4
mV/V
Positive Hysteresis 1
CP0HYP1–0 = 00
0
1
mV
Positive Hysteresis 2
CP0HYP1–0 = 01
2
5
10
mV
Positive Hysteresis 3
CP0HYP1–0 = 10
7
10
20
mV
Positive Hysteresis 4
CP0HYP1–0 = 11
15
20
30
mV
Negative Hysteresis 1
CP0HYN1–0 = 00
0
1
mV
Negative Hysteresis 2
CP0HYN1–0 = 01
2
5
10
mV
Negative Hysteresis 3
CP0HYN1–0 = 10
7
10
20
mV
Negative Hysteresis 4
CP0HYN1–0 = 11
15
20
30
mV
Inverting or Non-Inverting
Input Voltage Range
–0.25
V
DD
+ 0.25
V
Input Capacitance
3
pF
Input Bias Current
0.001
nA
Input Offset Voltage
–5
+5
mV
Power Supply
Power Supply Rejection
0.1
mV/V
Power-up Time
10
µs
Supply Current at DC
Mode 0
7.6
µA
Mode 1
3.2
µA
Mode 2
1.3
µA
Mode 3
0.4
µA
*Note:
Vcm is the common-mode voltage on CP0+ and CP0–.
